diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c
index bbaa2b153934..be61a1d845a4 100644
--- a/arch/x86/mm/pgtable_32.c
+++ b/arch/x86/mm/pgtable_32.c
@@ -6,6 +6,7 @@
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/mm.h>
+#include <linux/nmi.h>
 #include <linux/swap.h>
 #include <linux/smp.h>
 #include <linux/highmem.h>
@@ -39,6 +40,8 @@ void show_mem(void)
 	for_each_online_pgdat(pgdat) {
 		pgdat_resize_lock(pgdat, &flags);
 		for (i = 0; i < pgdat->node_spanned_pages; ++i) {
+			if (unlikely(i % MAX_ORDER_NR_PAGES == 0))
+				touch_nmi_watchdog();
 			page = pgdat_page_nr(pgdat, i);
 			total++;
 			if (PageHighMem(page))